Objective: To analysis the white matter structural basis with tract-based spatial statistics(TBSS)of spatial navigation impairment in mild cognitive impairment(MCI).Methods: Twenty-seven MCI subjects
Purpose: To examine the associations among age,Apolipoprotein E(APOE)genotype,hippocampus subfield volume changes,and neuropsychological measures of cognition in non-demented elders.Materials and Meth
Purpose We aimed to study application value of histogram analysis of MRI images for identification of benign and malignant breast tumors.Methods69 cases with breast lesion were selected as the researc
目的 研究肺泡微石症的HRCT表现.方法 收集经临床病理证实肺泡微石症5例,男性2例,女性3例,年龄为36～56岁.5例均做了HRCT检查.结果 根据本病的临床、肺实质和肺问质的侵犯程度将其分为3类,轻度表现为肺实质微结石形成,诊断困难；中度除肺实质微结石形成外伴有轻度肺闻质损害；重度表现有严重的肺间质纤维化,见5例.结论 肺泡微石症罕见,病因不明,无性别差异,约50％～77％有家族发病倾向,均限
Purpose: Carotid atherosclerosis is one of the important risk factors for ischemic cerebrovascular disease.As one of the major causes of atherosclerosis,the incidence of hyperlipidemia in China and th
Background Alzheimers disease(AD)is the most common form of clinical dementia which is characterized by progressive cognitive decline and dysfunction of multiple cognitive domains.The pathological hal
目的 与消化道造影比较,探讨胸部CT在诊断食管癌术后吻合口瘘中的价值.方法 选取食管癌术后行胸部CT及消化道造影检查的患者50名,对比分析两种检查结果,并对CT征象分析.结果 CT诊断吻合口瘘的敏感性、特异性、阳性预测值、阴性预测值分别为100％、86.67％、 83.33％ 、100％；消化道造影诊断吻合口瘘的敏感性、特异性、阳性预测值、阴性预测值分别为85％ 、100％、100％、90.91％
Objectives: The usefulness of ultrafast sequence called balanced turbo field echo sequence with sensitivity encoding(sBTFE),that has been used routinely in a clinical practice is not well established
目的 探讨鼻咽癌IVIM-DWI及DCE-MRI参数与鼻咽癌血管生成相关病理指标的关系、对鼻咽癌与鼻咽淋巴瘤的鉴别价值、对评估鼻咽癌病情进展程度以及预测其转移潜能方面的价值、对预测鼻咽癌放化疗疗效的价值。方法 分析82例鼻咽癌IVIM-DWI、DCE-MRI参数值与乏氧诱导因子(HIF-1)表达、VEGF表达及微血管密度之间的相关性。
目的 探讨磁共振波谱研究中两次扫描所得结果的稳定性.方法 选取30名健康志愿者(9男,21女,年龄21±3)分为A、B两组,每组15人,以大脑右侧前额叶作为目标脑区.利用3.0T磁共振成像扫描仪(Siemens MAGNETOM Trio Tim),采用点分辨波谱(PRESS)序列对每位志愿者进行两次扫描,其中A组在定位后进行两次连续扫描,B组在定位后先进行一次扫描,然后将扫描床移出磁场中心,隔三